Mattress-springs.



R. G. MARQUARDT & O. H. STUEWE.

MATTRESS SPRINGS.

APPLICATION FILED JAN. 6, 1913.

1 092,375. Patented Apr. 7, 19m

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3.0. MARQUARDT & 0. H.--STUEWE.

MATTRESS SPRINGS. APPLICATION FILED JAN. 6, 191a.

Patented Apr. 7, 1914.

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ammo 0s eooeo j 92% W 45m .5. 7 I 351? TM UMTEU STATES PATENT OFFICE.

REINI-IOLD G. MARQUARDT AND OSCAR H. STUEWE, OF MILWAUKEE, WISCONSIN, ASSIGNORS TO MILWAUKEE WOVEN WIRE WORKS, OF MILWAUKEE, WISCONSIN,

.A CORPORATION OF WISCONSIN.

MATTRESS-SPRINGS.

Application filed January 6, 1913.

Specification of Letters Patent.

To all whom it may concern:

Be it known that we, REINHOLD G. MAR- QUARDT and OSCAR H. STUEWE, citizens of the United States, residing at Milwaukee, county of Milwaukee, and State of VVisconsin, have invented new and useful Improvements in Mattress-Springs, of which the following is a specification.

Our invention relates to improvements in mattress springs, and pertains among other things, 1st, to the combination with fiat resilient strips of metal of transversely arranged spiral wire springs, and, 2nd, to the device for connecting the spiral wire springs with the transversely arranged strips.

Our invention is further explained by reference to the accompanying drawings, in which- Figure 1 represents a plan view of the mattress spring connected with its supportingframe. Fig. 2 is a top view of one of the fiat metallic strips. Fig. 3 is a top view of the metallic strips in connection with the transversely arranged spiral springs, showing the manner of connecting the springs with the flat strips, and Fig. 4 is a side view, drawn on line wcc of Fig. 3.

Like parts are identified by the same reference numerals throughout the several views.

1 represents one of the flat metallic strips, each of which is preferably suspended at its respective ends from the end members 2 of the mattress supporting frame by a spiral spring 3, and said spiralspringsS are connected with the end members of the frame by the hooks 4 and with the ends of the flat strips by the hooks 5, as shown in Fig. 1. Each of the fiat metallic strips 1 is provided with'a plurality of apertures 6 for the reception of spiral wire springs 7, and said springs are connected with said flat metallic strips by revolving the same, whereby the ends 8 of the spiral wire springs are caused to pass successively through said apertures 6 of the several strips 1 from one side of themattress spring to the other, as shown in Fig. 1, whereby all of the strips 1 are connected together at short intervals by said wires 7 and whereby the fiat longitudinal strips are free to move upwardly and downwardly while the spiral wire springs 7 yield sufficiently to conform to the upward and downward movement of said strips.

WVe are aware of the fact that flat metallic strips arranged transversely to each other have heretofore been interwoven together in the construction of mattress springs, but by such construction the transversely arranged strips have a tendency to stiffen the mattress and prevent its resilient action under pressure, while by our construction, the several transversely arranged springs are adapted to yield with the downward pressure upon the longitudinal strips without interfering with their resiliency or free upward and downward movement, while, owmg to the fact that the transversely arranged spiral springs are connected with the lon 'tudinal strips 1 by passing through sai apertures, said strips are retained at uniform distances apart throughouttheir entire length and the liability of the cooperat- 1ng parts getting out of place is thereby avoided. When the spiral springs 7 have been thus passed through the apertures of the several longitudinal strips, as shown in Figs. 1 and 3, the ends of said springs are preferably bent inwardly and caused to engage the next succeeding coil'in the series, as shown in dotted lines at 8 in Fig. 3, whereby said springs are prevented from turning or becoming disengaged from said longitudinal strips. It will be understood that by thus interposing a spiral spring between the ends of the flat metallic strips and the supporting frame members, such fiat metallic strips are retained under constant tension by the recoil of such springs.

Having, thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a device of the described class, the combination of a mattress frame, a longitudinal series of flat resilient metallic strips,

means for suspending said strips at their respective ends from said mattress frame, a plurality of transverse spiral springs extending at right angles to and across the several flat metallic strips, and means for connecting said springs to said fiat strips at the several points of contact.

2. In a device of the described class, the combination of a mattress frame, a longitudinal series of fiat metallic strips, each provided with a plurality of apertures, means for suspending said series of strips at their respective ends from said frame, a series of transversely arranged spiral springs, said springs being inserted through the perforations in said flat strips at the several points of contact.

3. In a device of the described class, the combination of a mattress frame, a longitudinal series of flatresilient strips suspended longitudinally at their respective ends from the end members of said frame, means for maintaining said longitudinal strips underconstant tension, a plurality of transversely arranged spiral springs supported from said lon 'tudinal strips, means for connecting sai springs to said strips at the several points of contact, and means for permanently connecting the ends of said springs.

with the strips at the respective sides of the mattress frame.

4. In a device-0f the described class, the combination of a mattress frame, a longitudinal serie of flat metallic strips,each provided with a plurality of apertures suspended longitudinally at their respective ends from the end members of said frame, a short spiral spring connecting the respective ends of each of said fiat strips with the end members of said frame for maintaining said longitudinal strips under constant tension, a plurality of transversely arranged spiral springs, said springs being inserted through the apertures of said longitudinal strips at the several points of contact, and means for permanently connecting the ends of said springs with the strips at the respective sides of the mattress frame.

In testimony whereof we aflix our signatures in the presence of two witnesses.

REINHOLD G. MARQUARDT.

OSCAR H. 'STUEWE. Witnmes:

JAs. B. ERWIN,

IRMA D. BREMER. 

